55 citations · 229 across the 13 of their papers we have counts for
14 papers
Post-Carroll Algebra, Conformal Extensions, and Field Theories
Mojtaba Najafizadeh
By incorporating leading -dependent corrections to the Carroll transformations, we introduce the ``post-Carroll transformations''. We demonstrate that these transformations ar…
Post-Carrollian Mechanics, Ideal Gas, and Gravity
Mojtaba Najafizadeh
Energy and momentum in Newtonian mechanics have the familiar relations, () and (), derived from the non-relativistic limit of special rel…
Classification of Conformal Carroll Algebras
Hamid Afshar, Xavier Bekaert, Mojtaba Najafizadeh
We classify a one-parameter family, , of conformal extensions of the Carroll algebra in arbitrary dimension with being the anisotropic scaling expon…
Carroll-Schrödinger Equation
Mojtaba Najafizadeh
The Poincaré symmetry can be contracted in two ways to yield the Galilei symmetry and the Carroll symmetry. The well-known Schrödinger equation exhibits the Galilei symmetry and is…
Super-Carrollian and Super-Galilean Field Theories
Konstantinos Koutrolikos, Mojtaba Najafizadeh
The exploration of scalar field theories that exhibit Carroll and Galilei symmetries has attracted a lot of attention. In this paper, we generalize these studies to fermionic field…
Massive to Massless by Applying a Nonlocal Field Redefinition
Mojtaba Najafizadeh
The invariance of physical observables like particle's mass under a local field redefinition is a well-known and important property of quantum field theory. In this paper, on the o…
Off-shell Supersymmetric Continuous Spin Gauge Theory
Mojtaba Najafizadeh
We construct, for the first time, an off-shell supersymmetric continuous spin gauge theory in 4-dimensional Minkowski spacetime, in both constrained and unconstrained Lagrangian fo…
Unconstrained Massless Higher Spin Supermultiplet in AdS
Mojtaba Najafizadeh
We consider unconstrained formulation of the higher spin gauge theory in anti de Sitter (AdS) spacetime, given by actions [1, 2], and provide on-shell supersymmetry transformations…
Supersymmetric Continuous Spin Gauge Theory
Mojtaba Najafizadeh
Taking into account the Schuster-Toro action and its fermionic analogue discovered by us, we supersymmetrize unconstrained formulation of the continuous spin gauge field theory. Af…
A local action for fermionic unconstrained higher spin gauge fields in (A)dS space
Mojtaba Najafizadeh
The local free action principle for bosonic unconstrained higher spin gauge fields in -dimensional (A)dS spacetime has been already established by Segal. However, later on,…
Continuous-spin field propagator and interaction with matter
Xavier Bekaert, Jihad Mourad, Mojtaba Najafizadeh
Action principles for the single and double valued continuous-spin representations of the Poincare group have been recently proposed in a Segal-like formulation. We address three r…
Modified Wigner equations and continuous spin gauge field
Mojtaba Najafizadeh
In this paper, we first propose the bosonic (fermionic) modified Wigner equations for continuous spin particle (CSP). Secondly, starting from the (Fang-)Fronsdal-like equation, we…
A gauge field theory of fermionic Continuous-Spin Particles
X. Bekaert, M. Najafizadeh, M. R. Setare
In this letter, we suggest a local covariant action for a gauge field theory of fermionic Continuous-Spin Particles (CSPs). The action is invariant under gauge transformations with…
Thermodynamics of Classical Systems on Noncommutative Phase Space
Mojtaba Najafizadeh, Mehdi Saadat
We study the formulation of statistical mechanics on noncommutative classical phase space, and construct the corresponding canonical ensemble theory. For illustration, some basic a…